Paving roller and steering mechanism



2 Shouts-Sheet 1 P. w. DlErLY Filed-Aug. 2:5. 1924 `Aug. 9, 1927.

PAVING ROLLER AND STEERING NEcHANIsN ug 9 P. w. DIETLY PAVING ROLLER AND STEERING MECHANISM Filed Aug'. 2z. 1924 2 shun-snm. 2

Patented Aug.` 9, 1927.

. Unirse STA PHILIP WL DIETLY, or EME, PENNSYLVANIA.

:PAVING ROLLER AND STEERING MECHANISM.

Application filed August 23', 1924. SerialiNo. 733,709.

to be achieved -by'a roller, namely, a smooth surface.

' the engine 7.

More'specifically an object of my invention is to provide a roller which may be turned While ruiming in one direction. for example, by a continuous forward 1nove-.

ment. A y

A still further object is to provide a roller having means for indicatingthe radius upon which it is turning whereby the operator may properly set the steering mechanism.

A still further object is to provide a roller of Vsimplified construction which mayk be operated by a direct .drive from the engine.

-A still further object is to provide a roller, the partsof efficiently arranged tion of Weight. l

In the accompanying drawings in which I to give the 'best distribu-v have illustrated.alselected embodiment offl my invention7 Fig. 1 is a. side elevation of a roller embodyingk my invention.

Fig. 2 isa fragmentary plan view on the line 2-2 of Fig. l1, parts being omitted for the purpose of clearness. .V

Fig. 3 is a view similarto Fig. 2 of a portion of the structure illustrated in 2 land showing the mechanism in a different position.

Fig. 4 Fig. 2. Y

Referring now tothe drawings, the' numeral 1 designates a vframe of generallfyrectangular form and supported upon the front or driving rolls 2 and 3. These rolls are disposed in alignment, as is customary, and are spaced apart a sufficient distance to receive isa section` on the line 11s-4 of a roller chain 4 engaging sprocket 5, operthe rollsA and alsov ativ'ely connectedV to trained over the sprocket 6 on a shaft 6 of which are compactly and,

` adjacent the other This engine may be of any..

suitable type, but I have shown itk heieinvasY being of the rotary type 4and having a generator or boiler 8. As will be seen from an inspection of Fig. 1, the boiler-and generator are mounted rearwardly of the rolls 2 and 3 and mountedbn the frame 1 in front Y of these rolls is the Water tank 94 which supplies` Water to the generator 8 through a suitable connection not shown. Above the Water tank is mounted a Vcondenser 10V connected to the engine 7 by suitableexhaust pipekll. This kexhaust. pipe passes through the ballasttank 12 which is supported by a suitable bracket 12 and by the Water tank,

9, the Water tank 9 being in turn supported on the frame by a suitabfe bracketr13. This distribution of Weight has been found to be very satisfactory, resulting in a roller which is well balanced.

Supported on the rear end of the frame 1 by any suitable'means is a seat 14 and in trout of the seat is' a frame 15 which supports controls 16 for the engine 7. The.v

frame 15 further carries a hand Wheel 17 having fa sha-ft 18 on which isY mounted a sprocket 19 driving a chain 20; which in turny engages a sprocket 21 on a shaft 22 journaled in a suitable bracket 23 carriedonv the main frame 1. The shaft 22 is provided with gear 25 upon awvorm 24 engaging a Worin a shaft l26 journaled in a suitablebracket 27 and which carries a sprocket wheel 28 around which is trained a sprocket chain 29.

The chain 29 passes around a sprocket() side of the frame 1 and carried by a shaft 31 journaled in a suitable bracket 32. This chain'29 is the steering or guiding chain and it performs this function by movement of a king bolt block 33, slidab'lysupported between the'guide members 34 and 35 o"f the frame 1. This block 33 carries the king bolt 36 having a head V37 revolubly supported in a block 38 fastened by any suitable means 39 to the saddlev40. The saddle 4() carries the rear or steering roll 41.- l

. Referring particularly to Fig, 4, the guide member 35 is provided With a suitable bracket 42 in which is sWiveled ay T-bolt 43 having a head 44 recessed at 45 to slidinglyv tating the T-bolt 4:3. The king' bolt is provided adjacent'its upper end with a nut 49, or the like, to hold it in position in the king bolt block 33 and above the nut t9 theking bolt is reduced in diameter, as shown, and provided with a pointer 50 to co-operatc with a suitable scale 5l, for a purpose which will presently appear.

The operation ot the steering apparatus will be apparent from an inspection of the drawings, particularly Figs. and B. l/Vhen the roller is moving' straight ahead the rear or guiding' roll will be in the position shown in Fig. 2 wherein it is parallel wth the front or drive rolls 2 and 8. lWhen it is desired to turn the roller the operator merely rotates the hand wheel I7 in the proper direction.

' This rotation will actuatev the chain 29 through the train ot' `gearing` described above to move the king boit block o in the guide formed by the members 34 and B5. Move ment otl the king bolt block will, of course.

cause movement of the saddle 410 and the entire roll 4l. transversely ot the roller and at the same time, due to the engagement of the tail end 46 with the ribolt 43, the king bolt and consequently the entire saddle and guiding' roll will be rotated about the axis of said king` bolt to some such position as shown in Fig. 3. During this movement the tail end i6 will slide in the recess in the T bolt. The angle at which the reai or guiding roll is inclined to the roller is indicated by the pointer 50 and the scale 5l may be graduated to indicatie the radius o the circle ou which the roller is moving, or it may be graduated otherwise, as desired. The length ot the various rolls is so proportioned that the steering' roll will always run within the path ot the driving,` rolls and will also cover the space between the two driving rolls, thereby insuring that the entire suif face of the pavement .is being rolled.

From the above it will be apparent that I have provided a roller which is extremely simple in construction and well balanced as to weight, and also one which will operate in a narrow space` .er roller constructed and operated in the manner set forth above may make a complete turn Iwithin a street which is ten feet between curbs or, in other words, on a tive toot radius, the path which it takes being in the Yform of a spiral and its movement always being a forward one. By employing an engine with a horizontal shaft and a chain drive operating' between the driving,l rolls I have simplified the construction by the elimination of much of the driving mechanism usually employed with a roller. This is made possible by employing a compact engine having a horizontal shaft `arranged transversely of the roller.

While `I have shown my steering` mechanism applied to a roller I do not desire to be limited to its use with a roller because I am aware that it may be employedv with other types of equipment, such as Va tractor or any other device employing,` rolls or wheels, and in the claims I shall use the word roll to include wheels and other traction devices. v

I am aware that changes in the form, construct-ion and arrangement oi parts may be made without departing from the spirit and without sacrii'icing thev advantages of the invention and I reserve the rightto make all such changes fairly falls within the sc pe of the following,` claims l. In a device oit the class described, a trame, driving roll supportingl said iframe,- a steering roll, and means to move said steering roll transversely ot said frame.

2. In a device of the class described, aV

trame, a steering roll, and means to move said steering roll transversely of said trame and to rotate said roll about a vertical axis.

3. In a device of the class described, ai

trame, a guide on said trame,- a block sliding` in said guide, a steering roll said block in said guide. Y

4:. In a device of the class described, a trame, a guide in said trame, a block slidably mounted in said guide, a steering,` roll, a bolt pivotally mounted on said 'steering pivotall y secured to said block, and means tor movingA roll and rotatably mounted in said block,

and means t'or guide.

5. In a device of the class described, a

sliding said block in Asaid trame, a block slidable in said frame, abolt rotatably mounted in said block, a steering roll, means pi votally connectingy said bolt with said roll, and a member rigidly connected with said bolt and slidably connected to a swivel on said frame.

(5. In a device ot the class described, a trame, a block slidable in said trame, a bolt rotatably mounted in said block, a steering roll, means pivotally connecting, said bolt with said roll, with said bolt and slidably connected to a swivel on said trame, and means for sliding said block in said guide. l

7. In a device of thev class described, a

trame, a block slidable in said frame, avbolt` rotatably mounted in said block, a steering roll, means pivotally connecting said bolt with said roll, a. member rigidly connectedv trame, a guide in said frame, a block slid-V ably mounted in said guide, a bolt revolubly mounted in said block, a swivel on Vsaid frame, a member fast on said bolt and slidably mounted in said swivel whereby movement of said block in said guide willcause.

a member rigidly connected l I ably mounted in said guide,

rotation of said bolt andsliding of said member in said swivel.

9. In a-device of the class described, .a frame, a guide in said frame, a block slida bolt revolubly mounted in said block, a sWivelon said frame, a member fast on said bolt and slidably mounted in said swivel whereby move? ment of said block in said guide Will cause rotation of said bolt and sliding of said member in said swivel, and means for indieating the extent of rotation oi" said bolt. 10. In a device of the class described, a frame, a guide in said frame, a block slid K ablein said guide, a bolt rotatably mounted in said'block, a scale mounted on said block above said guide, the upper portion of said .bolt being provided with a pointer to cooperate with said scale, and means for mov-- ing said block in said guide and Jfor *rotating said bolt.

l1. In a device. of the class described, a steering roll, a saddle carried by said roll,

a frame above said saddle, a. guide in said' a block slidably mounted in saidl frame, guide, a bolt rotatably mounted in said block and in` said saddle, and means vfor moving said block in said guide and rotating said bolt in said block.

12. Ina device of the class described, a

steering roll,'a saddle carried thereby, aY

frame above said saddle, a bolt pivotally supported on said saddle and pivotally and slidably supported on said frame, and means for imparting sliding` vand rotative move i said bolt, and meansr for indicating the eX-Y tent of rotation of said bolt.

PHILIP W..DIETLY. 

